NEC DT900 Series User manual

DT900/DT900S Series Phone User Guide
For UNIVERGE 3C Communications
and SIP@Net Platforms

DT900/DT900S Series Phone User Guide
For UNIVERGE 3C Communications
and SIP@Net Platforms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HTTP://WWW.NEC.COM
PART NUMBER 540-446R0
DT900 SERIES FIRMWARE VERSION 5.0
3C UNIFIED COMMUNICATION SYSTEM V9.2.1

iv P/N 540-446r0 DT900/DT900S Series Phone User Guide
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NOTICES
Copyright © 2008-2019 NEC Corporation. All rights reserved.
NEC Corporation (“NEC”) is continually upgrading and developing the products
described in this publication. The information contained herein is subject to change
without notice. Written permission is required prior to reproduction of any of the work
covered here by copyright.
For warranty information, see the License Agreement included with the software.
NEC, the NEC logo, UNIVERGE, and UNIVERGE 3C (hereinafter referred to as the
“3C”) are trademarks or registered trademarks of NEC Corporation.
Spreed, struktur, and icoya are registered trademarks of Struktur AG.
AudioCodes, AC, HD VoIP, HD VoIP Sounds Better, IPmedia, Mediant, MediaPack,
OSN, SmartTAP, VMAS, VoIPerfect, VoIPerfectHD, Your Gateway To VoIP and 3GX
are trademarks or registered trademarks of AudioCodes Limited.
Windows, Microsoft, Outlook, and Exchange are trademarks or registered trademarks
of Microsoft Corporation in the United States and other countries.
Other products mentioned in this document are the property of their respective
owners and are also subject to copyright, trademark, and intellectual property
protection as applicable by law.
NEC Enterprise Communication Technologies, Inc., is a wholly owned subsidiary of
NEC Corporation, Japan. All Rights Reserved.
UNIVERGE 3C documentation and UNIVERGE 3C System Requirements apply to
the standard installation, configuration, administration and maintenance of the 3C
system except where superseded by instructions in DoD Certified Session Controller
(DoD SC) environments. Certification by the Joint Interoperability Test Command
(JITC) for the US Department of Defense (DoD) and LSC (Local Session Controller)
certification requires the installation and configuration of additional 3C system
security and operational features using the Required Installation Checklist included in
the Unified Capabilities Session Controller Deployment Guide. If a system is rebuilt or
upgraded for any reason, the system must again be modified to meet the
configuration settings as documented in the Required Installation Checklist.
U.S. Patent Numbers 5,892,764 and 6,735,208 and related Foreign Patents.
Australian Patent Number WO07/095418.
Other U.S. and Foreign Patents Pending.

. . . . .
DT900/DT900S Series Phone User Guide P/N 540-446r0 v
DOCUMENT REVISION HISTORY
540-446r0 August 2019 Initial release, NEC Std SIP 5.0 for DT900 Series

vi P/N 540-446r0 DT900/DT900S Series Phone User Guide
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DOCUMENT FEEDBACK
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document, please contact your NEC Technical Assistance Center(s).
Please use the local regional contact information listed above for contact information.
When contacting NEC TAC, please have the following information available:
DOCUMENT INFORMATION
Document Name and Product Number:
________________________________________________________
System Release Version:
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REGIONAL CONTACTS
NEC HEADQUARTERS & ASIA OPERATIONS
NEC Corporation
7-1, Shiba 5-chome Minato-ku,
Tokyo 108-8001 Japan
Telephone: [phone]
Fax: [phone]
Website: www.nec.co.jp/
EUROPE, MIDDLE EAST AND AFRICA
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Olympia 4, 1213 NT Hilversum,
The Netherlands
Telephone: [phone]
Fax: [phone]
Website: www.nec-enterprise.com
Postal Address
NEC Nederland BV
P.O. BOX 32, 1200 JD Hilversum

. . . . .
DT900/DT900S Series Phone User Guide P/N 540-446r0 vii
The Netherlands
NORTH AMERICA
NEC Corporation of America
3929 W John Carpenter Fwy
Irving, TX 75063-2909
Telephone: [phone] (800-2400-NEC)
Fax: [phone]
Authorized Associates and Resellers:
Phone: [phone]
Fax: [phone]
Website: www.necam.com
WORLDWIDE OFFICES
For the latest information on offices in your area, visit www.nec.com and select your
area.

viii P/N 540-446r0 DT900/DT900S Series Phone User Guide

DT900/DT900S Series Phone User Guide i
Contents
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C ONTENTS
Notices ................................................................................................................ iv
Document Revision History .............................................................................. v
Document Feedback ........................................................................................... vi
Document Information ..................................................................................... vi
1 Overview.....................................................................................1-1
Supported Phone Models ..............................................................................1-1
2 Introduction to the DT900 Phones ...........................................2-3
DT900 Series Phones .......................................................................................2-3
Platform Compatibility....................................................................................2-3
Keys and Parts ..............................................................................................2-3
DT Series Phone Specifics ...............................................................................2-4
Speed Dial Key Numbering for ITK-6D Phones.........................................2-4
Presence Monitor Settings and Speed Dial Keys ......................................2-5
To display the Menu List using the Menu Key .........................................2-24
Gigabit Ethernet Licensed Support..............................................................2-27
ITK-8LCX Phone Specifics..............................................................................2-27
Programmable Key Information Display ......................................................2-27
3 Installation................................................................................3-31
Before You Begin ........................................................................................3-31
Adjusting Angle of Tilt Leg...........................................................................3-31
To raise tilt leg..........................................................................................3-31
To lower tilt leg.........................................................................................3-32
Connecting the Phone .................................................................................3-33
To attach the handset ..............................................................................3-33
To connect LAN cable to the phone.........................................................3-34
To access User Settings on the ITK-8TCGX and ITK-32TCGS ..............3-34
To connect a headset (Optional)..............................................................3-35
To connect a computer (Optional) ...........................................................3-35

ii DT900/DT900S Series Phone User Guide
4 Basic Settings/Configuration..................................................4-37
Basic Setup with the Cursor Pad ....................................................................4-38
To adjust the ringing volume....................................................................4-38
To adjust the Soft Ring volume (SIP@Net Platforms) .............................4-38
To adjust the headset ringing volume ......................................................4-38
To adjust the call volume (handset).........................................................4-38
To adjust the call volume (headset).........................................................4-38
To adjust the call volume (speaker) .........................................................4-38
Basic Setup with the Menus and Cursor Pad..................................................4-39
To access User Settings on the ITK-8TCGX and ITK-32TCGS ..............4-39
To select an Internal Ringtone .................................................................4-39
To select an external ringtone..................................................................4-40
To enable an external headset ................................................................4-40
To set external headset ringing (Optional)...............................................4-41
To set the Call Waiting volume ................................................................4-41
To set the Hold Reminder volume ...........................................................4-42
To change the Display Language ............................................................4-42
To set the Date Format ............................................................................4-42
To set the Time Format............................................................................4-43
To adjust the LCD contrast ......................................................................4-43
To change the LCD Backlight Timeout ....................................................4-43
To disable the Screen Saver (8LCX and 8TCGX) ...................................4-44
To change the Screen Saver Waiting Time (8LCX and 8TCGX).............4-44
To Clear User Settings.............................................................................4-44
To Clear Personal Directory.....................................................................4-45
To Clear Call History................................................................................4-46
To restart your phone...............................................................................4-47
To restart your phone on the ITK-32LCGS and ITK-32TCGS .................4-47
To view the phone settings ......................................................................4-48
To view the phone settings on the ITK-32LCGS and ITK-32TCGS.........4-48
To view the firmware information for your phone.....................................4-48
To view firmware information on the ITK-32LCGS and ITK-32TCGS......4-48
To view the IP address of your phone .....................................................4-49
To view the IP address on the ITK-32LCGS and ITK-32TCGS ...............4-49
To view the maximum numbers of calls you can handle
on your phone ..........................................................................................4-50
To view the maximum numbers of calls you can handle
on the ITK-32LCGS and ITK-32TCGS.....................................................4-50
Speed Dial and Personal Directory Character Sets ........................................4-51
5 Security Features.....................................................................5-55
Secure Calls ................................................................................................5-55
Secure Signaling......................................................................................5-56
Secure Media...........................................................................................5-56
Errors and Debugging .................................................................................5-58

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DT900/DT900S Series Phone User Guide iii
6 Basic Phone Operation ...........................................................6-61
Basic Call Operation .......................................................................................6-62
Answering Calls...........................................................................................6-62
To answer an incoming call .....................................................................6-62
To reject an incoming call ........................................................................6-62
Placing Calls................................................................................................6-62
To place an external call ..........................................................................6-62
To place an internal call ...........................................................................6-63
Call Duration................................................................................................6-63
Ending a Call ...............................................................................................6-63
Redialing a Number.....................................................................................6-63
Hold/Resume a Call.....................................................................................6-64
To hold/resume a call...............................................................................6-64
Using a Headset to Make and Receive Calls ..............................................6-64
To make calls with your headset..............................................................6-64
To answer calls with your headset...........................................................6-65
To transfer the current call to your headset .............................................6-65
Call Waiting/Concurrent Calls .........................................................................6-65
To answer the other incoming call (Call Waiting).....................................6-65
To place a second call (Concurrent call)..................................................6-65
To switch between calls ...........................................................................6-66
Call Transferring and Conferencing ................................................................6-66
Conferencing Calls ......................................................................................6-66
To conference two calls ...........................................................................6-66
To hold/resume a conference call............................................................6-67
To call another party while on a conference call......................................6-67
To split a conference call .........................................................................6-67
To switch between two calls ....................................................................6-68
Hang Up while conferencing....................................................................6-68
Transferring Calls ........................................................................................6-68
Attended transfer .....................................................................................6-68
Blind transfer............................................................................................6-69
Unattended transfer .................................................................................6-69
To shuttle between calls during an Attended Transfer.............................6-69
To split calls into two calls when transferring (Transfer split)...................6-70
Advanced Messaging Features.......................................................................6-70
Message Waiting Indication.........................................................................6-70
Accessing Voice Mail...................................................................................6-70
7 Programmable Keys ................................................................7-71
Speed Dial and Programmable Keys ..............................................................7-72
Speed Dial Key Configuration .....................................................................7-72
Duplicate Entries in Speed Dials..............................................................7-72
Using the Feature Key .............................................................................7-72
To view Speed Dial Key information for Programmed
Speed Dial Keys ......................................................................................7-73
Speed Dial Key Operation ...........................................................................7-73
To originate a call from Speed Dial Keys.................................................7-73

iv DT900/DT900S Series Phone User Guide
Speed Dial Key Programming Examples ....................................................7-74
To add a Programmable Key/Speed Dial Key
without a Personal Directory entry ...........................................................7-74
To add a Programmable Key as a Speed Dial Key
with a Personal Directory entry using the Feature Key............................7-77
To add a Programmable Key as a Speed Dial Key
with a Personal Directory Entry from the Personal Directory...................7-79
To add a Speed Dial Key to an existing Personal Directory entry ...........7-82
To configure a Programmable Key as a Speed Dial Key
for a star/hash code .................................................................................7-86
Editing Speed Dial Keys ..............................................................................7-87
To edit a Speed Dial Key .........................................................................7-87
Deleting Speed Dial Keys............................................................................7-92
To delete the Speed Dial information ONLY
from a Personal Directory Entry...............................................................7-92
To delete an entire Speed Dial and Personal Directory entry..................7-93
To delete a Speed Dial only entry............................................................7-93
8 Color Microbrowser and Enhanced Programmable Keys....8-95
Using the Microbrowser ..................................................................................8-95
Feature Key with the Microbrowser .............................................................8-95
To view the Microbrowser Home page ....................................................8-96
Hot Desking .................................................................................................8-98
To Login using Hot Desking.....................................................................8-98
To Logout of Hot Desking session ...........................................................8-99
Handset Forwarding ..................................................................................8-100
To set a Handset Forwarding Condition ................................................8-101
To set Handset forwarding using star codes..........................................8-104
To set Conditional Handset forwarding - No Answer using star codes..8-104
To set Conditional Handset forwarding - Busy using star codes ...........8-104
To clear Handset Forwarding Conditions...............................................8-105
To clear Handset forwarding using star codes.......................................8-105
Call Recording ...........................................................................................8-106
Supervise a Call ........................................................................................8-107
View System Call History ..........................................................................8-110
To view call logs via the Microbrowser ..................................................8-110
List Conferences........................................................................................8-111
To view the Conference listing...............................................................8-111
Search Directory/Corporate Directory .......................................................8-113
To Search the 3C System Directory ......................................................8-113
Enhanced Programmable Keys ....................................................................8-115
Enhanced Programmable Key Support by phone model ..........................8-116
Enhanced BLFs .........................................................................................8-119
To place a call to a member of your workgroup.....................................8-120
To pick up a ringing call to a member of your workgroup ......................8-120
To transfer a call to a member of your workgroup .................................8-120
To pickup a held call from a member of your workgroup .......................8-120
To place a call to a member of your workgroup.....................................8-121
To pick up a ringing call to a member of your workgroup ......................8-121
To transfer a call to a member of your workgroup .................................8-122

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DT900/DT900S Series Phone User Guide v
Park Extension Key ...................................................................................8-122
To park a call to a Park Extension .........................................................8-122
To pickup a call on a Park Extension.....................................................8-122
Monitor/Supervise Key ..............................................................................8-123
To Monitor a Call (Workgroup scenario) ................................................8-123
Record Key................................................................................................8-123
To stop the recording a call....................................................................8-123
Send to VM Key.........................................................................................8-124
Hot Desk Key.............................................................................................8-124
To log out of your Hot Desk session ......................................................8-124
Trunk Dial Key ...........................................................................................8-124
To seize a trunk to place a call ..............................................................8-125
DND Key....................................................................................................8-125
To set Do Not Disturb for your phone ....................................................8-126
To disable Do Not Disturb for your phone..............................................8-126
Handset Forwarding Key ...........................................................................8-126
To set Forwarding for your phone..........................................................8-127
To disable Forwarding for your phone ...................................................8-127
9 Call History and Directories..................................................9-129
Call History and Corporate or Personal Directories ......................................9-129
The Menu Key...............................................................................................9-130
Call History....................................................................................................9-130
To access the Call History on the DT930 (ITK-8TCGX) and
the DT930S (ITK-32TCGS)....................................................................9-131
Access Call History using the Menu Key ...............................................9-131
Access Call History using the Cursor Pad .............................................9-131
To clear the Missed Calls icon, Message and Call Indicator Lamp
(if enabled) .............................................................................................9-132
To view Missed Calls .............................................................................9-132
To view Received Calls..........................................................................9-132
To view Outgoing Calls ..........................................................................9-132
To dial an internal number from the Call History using the handset ......9-133
To dial an external number from the Call History...................................9-133
To add a Call History entry to the Personal Directory............................9-133
To delete a specific entry from the Call History .....................................9-136
To delete Call History for all Missed, Received or Placed Calls ............9-137
To delete all Call History information .....................................................9-137
The Personal Directory .................................................................................9-137
Accessing the Personal Directory and Entry Details .................................9-138
Cursor Pad movement in the Personal Directory...................................9-138
To access the Personal Directory on the DT930 (ITK-8TCGX) and
the DT930S (ITK-32TCGS)....................................................................9-138
To access the Personal Directory ..........................................................9-138
To view a specific Personal Directory entry ...........................................9-139
Presence Monitor Settings and the Personal Directory .........................9-139
Incoming Call Display and the Personal Directory.................................9-140
Searching for an Entry in the Personal Directory ......................................9-140
To search the Personal Directory ..........................................................9-140
Dialing from the Personal Directory...........................................................9-141
To dial a number from the Personal Directory .......................................9-141

vi DT900/DT900S Series Phone User Guide
Adding or Editing a Personal Directory Entry ............................................9-141
Duplicate Entries in the Personal Directory ...........................................9-142
To add an entry to the Personal Directory .............................................9-142
To edit a Personal Directory entry .........................................................9-145
Deleting a Personal Directory Entry ..........................................................9-149
To delete a Personal Directory entry .....................................................9-149
To remove Personal Directory entry information but keep
Speed Dial Key information ...................................................................9-149
The Corporate Directory................................................................................9-149
Viewing the Corporate Directory and Entry Details ...................................9-150
To access the Coroprate Directory on the DT930 (ITK-8TCGX) and
the DT930S (ITK-32TCGS)....................................................................9-150
To access the Corporate Directory ........................................................9-150
To dial a number from the Corporate Directory .....................................9-150
Presence Monitor Settings and the Corporate Directory .......................9-151
10 Bluetooth Support ...............................................................10-153
To access User Settings on the ITK-8TCGX and ITK-32TCGS ..........10-153
To connect a Bluetooth headset to the DT930/DT930S phone ...........10-153
Bluetooth Settings ...................................................................................10-154
To access Bluetooth settings on the DT930 (ITK-8TCGX) and
the DT930S (ITK-32TCGS)..................................................................10-154
11 Phone Troubleshooting.......................................................11-157
Using the Help key ......................................................................................11-157
Basic Troubleshooting.................................................................................11-158
To check common problems................................................................11-158
Network Connections ..................................................................................11-159
My phone cannot register on the network............................................11-159
My phone cannot reconnect to the network after a
local settings change ...........................................................................11-159
I cannot connect to the network through the PC port
on the back of the phone .....................................................................11-159
My device connected to the PC Port lost its network connection ........11-160
Power ..........................................................................................................11-160
The phone does not power up .............................................................11-160
Calling .........................................................................................................11-160
The phone does not have a dial tone...................................................11-160
The phone cannot make any calls .......................................................11-161
The phone cannot make any external calls .........................................11-161
A Speed Dial/Personal Directory entry is not working correctly...........11-162
To access User Settings on the ITK-8TCGX and ITK-32TCGS ..........11-162
Telephone numbers from the Personal Directory or
Call History are not dialing correctly ....................................................11-162
The phone does not ring ......................................................................11-163
I cannot reconnect to a call on Hold/The call does not terminate ........11-163

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DT900/DT900S Series Phone User Guide vii
Phone Keypad.............................................................................................11-164
The dial pad and/or buttons are not working........................................11-164
I want to enter specific characters or letters in Speed Dials
and Personal Directory Entries ............................................................11-164
Phone Softkeys ...........................................................................................11-164
The phone softkeys are not working ....................................................11-164
I cannot see a particular softkey on my phone ....................................11-165
LCD Screen/Display....................................................................................11-165
The LCD is too light or dark .................................................................11-165
I want to adjust the time the LCD stays lit............................................11-165
I need to reset the language on my phone ..........................................11-166
The Call History information on my phone is gone ..............................11-166
The name shown on the LCD of my phone is wrong...........................11-166
Audio ...........................................................................................................11-166
There is no audio to my handset..........................................................11-166
There is no audio to my headset..........................................................11-167
Audio quality ........................................................................................11-167
A 3C System Features.............................................................. A-169
Call Pickup................................................................................................ A-169
To pick up a call .................................................................................... A-169
3C Voice Mail ........................................................................................... A-169
To access voicemail.............................................................................. A-169
3C System Telephone Set Star Code Commands ................................... A-170
System Star Code Commands ................................................................. A-170
B SIP@Net System Features ................................................... B-175
Programmable Keys / Speed Dial keys .................................................... B-175
Example ................................................................................................ B-175
SIP@Net Prefixes..................................................................................... B-176
Message Waiting Indication...................................................................... B-176
Desk Sharing and User Portability............................................................ B-176
To log on to a Desk Sharing Terminal .................................................. B-176
To log out of a Desk Sharing Terminal ................................................. B-176
C Notices................................................................................... C-179
Third Party Software Disclaimer and Limitations ......................................... C-179
Open Source License Acknowledgment................................................... C-179
OpenSSL Redistribution Conditions ..................................................... C-179
libSRTP Redistribution Conditions........................................................ C-180
NetBSD Foundation's (TNF) License.................................................... C-181
BSD license: ......................................................................................... C-181
Audio Coding Licenses............................................................................. C-182

viii DT900/DT900S Series Phone User Guide
Notice to the user ......................................................................................... C-182
Important safety information......................................................................... C-182
Use of an external AC adapter..................................................................... C-183
Use of an IEEE802.3af power supply .......................................................... C-183
Declaration of Conformity............................................................................. C-183
WEEE Product Disposal Information ........................................................... C-186

DT900/DT900S Series Phone User Guide ix
Contents
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L IST OF T ABLES
Monitor Presence Icons for ITK-6D phones . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Programmable Key information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . . . .2-5
Page Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
DT920S(6DGS) Keys and Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
DT920S(ITK-32LCGS) Keys and Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
DT930S(ITK-32TCGS) Keys and Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
DT920 (ITK-6D/12D) Keys and Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
DT920 (ITK-8LCX) Keys and Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
DT930 (ITK-8TCGX) Keys and Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21
Volume Display Icons for DT920. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24
Monitor Presence Icons for DT900/DT900S phones . . . . . . . . . . . . . . . . . . .2-28
Date Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-42
Clear Confirmation softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-45
Data Clear Confirmation acceptable user actions/keys . . . . . . . . . . . . . . . . .4-45
Clear Confirmation softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-45
Data Clear Confirmation acceptable user actions/keys . . . . . . . . . . . . . . . . .4-46
Clear Confirmation softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-46
Data Clear Confirmation acceptable user actions/keys . . . . . . . . . . . . . . . . .4-46
Uppercase Alphabetic Character Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-51
Lowercase Alphabetic Character Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-52
Numeric Character Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-54
Character entry mode Icon Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-54
Secure Registration Icon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-56
Secure Media Icon (Secure Media, Unsecure Signaling) . . . . . . . . . . . . . . . .5-56
Secured/Unsecure Signaling and Media Scenarios Icons . . . . . . . . . . . . . . .5-56
TLS Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-58
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-76
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-79
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-81
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . . .7-81
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-83
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . . .7-84
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-90
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . . .7-90
Supported search characters: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-114
Enhanced Programmable Keys Support. . . . . . . . . . . . . . . . . . . . . . . . . . . .8-117
Call recording indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-123
Trunk Presence LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-125
DND LEDs and Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-125
Handset Forwarding LEDs and Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-126
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-135
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . .9-136

xDT900/DT900S Series Phone User Guide
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-139
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-143
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . .9-144
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-147
Monitor Presence LED Colors for Speed Dial Keys . . . . . . . . . . . . . . . . . . .9-148
Monitor Presence Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-151
Bluetooth Settings Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-154
Bluetooth Settings Acceptable User Actions/Keys . . . . . . . . . . . . . . . . . . .10-155
Bluetooth Settnigs menu items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-155
Character entry mode Icon Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-164

DT900/DT900S Series Phone User Guide xi
Contents
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L IST OF F IGURES
DT920 (ITK-6D) Speed Dial Key Numbering . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
DT920S(ITK-6DGS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
DT920S(ITK-32LCGS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
DT930S(ITK-32TCGS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
DT920 (ITK-6D/12D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
DT920 (ITK-8LCX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
DT930 (ITK-8TCGX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Use Menu and Cursor Pad to access the Personal Directory. . . . . . . . . . . . .2-25
Use Cursor Pad to access Personal Directory . . . . . . . . . . . . . . . . . . . . . . . .2-25
Scroll key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27
ITK-8TCGX/ITK-32TCGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-28
Tilt Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31
Leg stoppers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
Adjust tilt leg (High) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
Leg stoppers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
Adjust tilt leg (Low) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
Handset Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34
Phone/LAN Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35
Headset Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35
LAN Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36
Cursor Pad Up/Down Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-38
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-39
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-39
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-47
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-47
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-48
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-48
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-49
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-49
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-49
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-49
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-50
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-50
Secure Media Icon (Secure Media, Secure Signaling) . . . . . . . . . . . . . . . . . .5-56
Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-61
Redial from Cursor Pad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-64
Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-71
Feature Key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-95
Transfer Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-121
Transfer Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-122
Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-130
Call History key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-131

xii DT900/DT900S Series Phone User Guide
Directory Key on the Cursor Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-131
Directory key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-138
Directory key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-150
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-153
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-153
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-153
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-153
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-154
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-154
Registered Phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-158
Unregistered Phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-158
Network Cable Unplugged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-158
Unregistered Phone icon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-159
Registered Phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-160
Unregistered Phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-160
Multi settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-162
Settings icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-162